CA2175264C - Methodes de recherche de listes de codage - Google Patents

Methodes de recherche de listes de codage Download PDF

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Publication number
CA2175264C
CA2175264C CA002175264A CA2175264A CA2175264C CA 2175264 C CA2175264 C CA 2175264C CA 002175264 A CA002175264 A CA 002175264A CA 2175264 A CA2175264 A CA 2175264A CA 2175264 C CA2175264 C CA 2175264C
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CA
Canada
Prior art keywords
pulse
locations
signal
pulses
location
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CA002175264A
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English (en)
Other versions
CA2175264A1 (fr
Inventor
Dror Nahumi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AT&T Corp
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AT&T IPM Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by AT&T IPM Corp filed Critical AT&T IPM Corp
Publication of CA2175264A1 publication Critical patent/CA2175264A1/fr
Application granted granted Critical
Publication of CA2175264C publication Critical patent/CA2175264C/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
    • G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
    • G10L19/10—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being a multipulse excitation
CA002175264A 1995-06-14 1996-04-29 Methodes de recherche de listes de codage Expired - Fee Related CA2175264C (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/518,354 US5822724A (en) 1995-06-14 1995-06-14 Optimized pulse location in codebook searching techniques for speech processing
US518,354 1995-06-14

Publications (2)

Publication Number Publication Date
CA2175264A1 CA2175264A1 (fr) 1996-12-15
CA2175264C true CA2175264C (fr) 2001-01-02

Family

ID=24063578

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002175264A Expired - Fee Related CA2175264C (fr) 1995-06-14 1996-04-29 Methodes de recherche de listes de codage

Country Status (6)

Country Link
US (1) US5822724A (fr)
EP (1) EP0749111B1 (fr)
JP (1) JPH0926800A (fr)
KR (1) KR100371977B1 (fr)
CA (1) CA2175264C (fr)
DE (1) DE69612788T2 (fr)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2254620A1 (fr) * 1998-01-13 1999-07-13 Lucent Technologies Inc. Vocodeur avec codage du vecteur d'excitation tolerant aux pannes
KR100576024B1 (ko) * 2000-04-12 2006-05-02 삼성전자주식회사 에이켈프 음성 압축기의 코드북 검색 장치 및 방법
US6847929B2 (en) * 2000-10-12 2005-01-25 Texas Instruments Incorporated Algebraic codebook system and method
KR100438175B1 (ko) * 2001-10-23 2004-07-01 엘지전자 주식회사 코드북 검색방법
JP4304360B2 (ja) * 2002-05-22 2009-07-29 日本電気株式会社 音声符号化復号方式間の符号変換方法および装置とその記憶媒体
KR100463419B1 (ko) * 2002-11-11 2004-12-23 한국전자통신연구원 적은 복잡도를 가진 고정 코드북 검색방법 및 장치
KR100503414B1 (ko) * 2002-11-14 2005-07-22 한국전자통신연구원 고정 코드북의 집중 검색 방법 및 장치
US20050256702A1 (en) * 2004-05-13 2005-11-17 Ittiam Systems (P) Ltd. Algebraic codebook search implementation on processors with multiple data paths
US7778472B2 (en) 2006-03-27 2010-08-17 Qualcomm Incorporated Methods and systems for significance coefficient coding in video compression
EP2009623A1 (fr) * 2007-06-27 2008-12-31 Nokia Siemens Networks Oy Codage de la parole
CN100530357C (zh) * 2007-07-11 2009-08-19 华为技术有限公司 固定码书搜索方法及搜索器
CN100578619C (zh) * 2007-11-05 2010-01-06 华为技术有限公司 编码方法和编码器
GB2508417B (en) * 2012-11-30 2017-02-08 Toshiba Res Europe Ltd A speech processing system

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3624302A (en) * 1969-10-29 1971-11-30 Bell Telephone Labor Inc Speech analysis and synthesis by the use of the linear prediction of a speech wave
CA1223365A (fr) * 1984-02-02 1987-06-23 Shigeru Ono Methode et appareil de codage de paroles
US4701954A (en) * 1984-03-16 1987-10-20 American Telephone And Telegraph Company, At&T Bell Laboratories Multipulse LPC speech processing arrangement
CA1337217C (fr) * 1987-08-28 1995-10-03 Daniel Kenneth Freeman Codage vocal
US5023910A (en) * 1988-04-08 1991-06-11 At&T Bell Laboratories Vector quantization in a harmonic speech coding arrangement
US4939061A (en) * 1989-05-25 1990-07-03 Xerox Corporation Toner compositions with negative charge enhancing additives
US5307441A (en) * 1989-11-29 1994-04-26 Comsat Corporation Wear-toll quality 4.8 kbps speech codec
CA2010830C (fr) * 1990-02-23 1996-06-25 Jean-Pierre Adoul Regles de codage dynamique permettant un codage efficace des paroles au moyen de codes algebriques
US5754976A (en) * 1990-02-23 1998-05-19 Universite De Sherbrooke Algebraic codebook with signal-selected pulse amplitude/position combinations for fast coding of speech
AU653969B2 (en) * 1990-09-28 1994-10-20 Philips Electronics N.V. A method of, system for, coding analogue signals
FI98104C (fi) * 1991-05-20 1997-04-10 Nokia Mobile Phones Ltd Menetelmä herätevektorin generoimiseksi ja digitaalinen puhekooderi
US5179594A (en) * 1991-06-12 1993-01-12 Motorola, Inc. Efficient calculation of autocorrelation coefficients for CELP vocoder adaptive codebook
US5265190A (en) * 1991-05-31 1993-11-23 Motorola, Inc. CELP vocoder with efficient adaptive codebook search
US5233660A (en) * 1991-09-10 1993-08-03 At&T Bell Laboratories Method and apparatus for low-delay celp speech coding and decoding
US5371853A (en) * 1991-10-28 1994-12-06 University Of Maryland At College Park Method and system for CELP speech coding and codebook for use therewith
US5339384A (en) * 1992-02-18 1994-08-16 At&T Bell Laboratories Code-excited linear predictive coding with low delay for speech or audio signals
US5327520A (en) * 1992-06-04 1994-07-05 At&T Bell Laboratories Method of use of voice message coder/decoder
US5621852A (en) * 1993-12-14 1997-04-15 Interdigital Technology Corporation Efficient codebook structure for code excited linear prediction coding
US5615298A (en) * 1994-03-14 1997-03-25 Lucent Technologies Inc. Excitation signal synthesis during frame erasure or packet loss

Also Published As

Publication number Publication date
JPH0926800A (ja) 1997-01-28
KR970002849A (ko) 1997-01-28
EP0749111A2 (fr) 1996-12-18
CA2175264A1 (fr) 1996-12-15
DE69612788T2 (de) 2001-11-22
KR100371977B1 (ko) 2003-04-07
US5822724A (en) 1998-10-13
DE69612788D1 (de) 2001-06-21
EP0749111B1 (fr) 2001-05-16
EP0749111A3 (fr) 1998-05-13

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